<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ElMessage } from 'element-plus'
import { ref } from 'vue'
import { useRouter } from 'vue-router'
import { useTokenStore } from '@/stores/token.js'
import { useUserInfoStore } from '@/stores/userInfo.js'
//获取路由实例
const router = useRouter()
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)
//定义数据模型
const registData = ref({
    uname: '',
    upassword: '',
    rePassword: ''
})

//校验密码的函数
const checkRePassword = (rule, value, callback) => {
    if (value === '') {
        callback(new Error('请再次确认密码'))
    } else if (value !== registData.value.upassword) {
        callback(new Error('两次输入密码不一致'))
    } else {
        callback()
    }

}
//定义表单校验规则
const rules = {
    uname: [
        { required: true, message: "请输入用户名", trigger: 'blur' },
        { min: 2, max: 16, message: "长度为2-16位非空字符", trigger: 'blur' }
    ],
    upassword: [
        { required: true, message: "请输入密码", trigger: 'blur' },
        { min: 3, max: 16, message: "长度为3-16位非空字符", trigger: 'blur' }
    ],
    rePassword: [
        { validator: checkRePassword, trigger: 'blur' }
    ],
    usex: [
        {
            required: true,
            message: "请选择性别",
            trigger: 'blur'
        },
        {
            validator: (rule, value, callback) => {
                if (['男', '女'].includes(value)) {
                    callback()
                } else {
                    callback(new Error('性别必须为男或女'))
                }
            },
            trigger: 'blur'
        }
    ]

}

//调用后台接口完成注册
import { userRegisterService, userLoginService } from '@/api/user.js'
const onRegister = async () => {
    //register是一个响应式对象，如果需要获取值，需要.value
    let result = await userRegisterService(registData.value);
    if (result.code === 200) {
        ElMessage.success(result.message ? result.message : '注册成功')
        isRegister.value = false;
    } else {
        ElMessage.error(result.message ? result.message : '注册失败')
    }
    cleanRegistData();
    
}
//调用useTokenStore得到状态
const useToken = useTokenStore();
const useUserInfo = useUserInfoStore();
const onLogin = async () => {
    let result = await userLoginService(registData.value);


    //把得到的token存储到pinia中
    useToken.setToken(result.data.token)
    useUserInfo.setInfo(result.data.uname)
    router.push('/')
}

//定义函数，清空数据模型
const cleanRegistData = () => {
    registData.value = {
        uname: '',
        upassword: '',
        rePassword: '',
        usex: ''
    }
}


</script>

<template>
    <el-row class="login-page">
        <el-col :span="12" class="bg"></el-col>
        <el-col :span="6" :offset="3" class="form">
            <!-- 注册表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-if="isRegister" :model="registData" :rules="rules">
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>
                <el-form-item prop="uname">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registData.uname"></el-input>
                </el-form-item>
                <el-form-item prop="upassword">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码"
                        v-model="registData.upassword"></el-input>
                </el-form-item>
                <el-form-item prop="rePassword">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码"
                        v-model="registData.rePassword"></el-input>
                </el-form-item>
                <el-form-item prop="usex">
                    <el-radio-group v-model="registData.usex">
                        <el-radio value="男" border>男</el-radio>
                        <el-radio value="女" border>女</el-radio>
                    </el-radio-group>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="onRegister">
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false; cleanRegistData()">
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>
            <!-- 登录表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-else :model="registData"
                @keyup.enter.native="onLogin">
                <el-form-item>
                    <h1>登录</h1>
                </el-form-item>
                <el-form-item prop="uname">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registData.uname"></el-input>
                </el-form-item>
                <el-form-item prop="upassword">
                    <el-input name="upassword" :prefix-icon="Lock" type="password" placeholder="请输入密码"
                        v-model="registData.upassword"></el-input>
                </el-form-item>
                <!-- <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item> -->
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="onLogin">登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true; cleanRegistData()">
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
    height: 100vh;
    background-color: #fff;

    .bg {
        background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
            url('@/assets/login_bg.jpg') no-repeat center / cover;
        border-radius: 0 20px 20px 0;
    }

    .form {
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>